Pressure-sensitive paint measurement on co-rotating disks

Tomohiro Kameya, Yu Matsuda, Hiroki Yamaguchi, Yasuhiro Egami, Tomohide Niimi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There appears fluttering phenomena in a hard disk drive system with high-speed disks rotating inside a closed space, leading to degrade of reading and writing performance. The precise pressure distribution on the disk may improve the performance, but there has been no report because it is very hard to measure the surface pressure using conventional techniques, such as pressure taps. While pressure sensitive paint (PSP) seems to be suitable for the pressure measurement on the disk, we have to compensate its highly temperature-sensitive characteristics of PSP, because the temperature distribution on the disk is not assumed to be uniform. We employed PySO3H based PSP, which has small temperature sensitivity, and have obtained the pressure distribution on the disk rotated at various speeds (10000-20000 rpm) successfully. The result showed that the pressure is higher at the disk outside than at the center, and forms a concentric circle distribution. Moreover, we found that the pressure difference between the inner and outer region of the disk increases as a square of disk rotation speed.

Original languageEnglish
Title of host publicationASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Pages211-215
Number of pages5
DOIs
Publication statusPublished - 2010 Dec 1
EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada
Duration: 2010 Aug 12010 Aug 5

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
Volume2
ISSN (Print)0888-8116

Other

OtherASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
CountryCanada
CityMontreal, QC
Period10/8/110/8/5

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Kameya, T., Matsuda, Y., Yamaguchi, H., Egami, Y., & Niimi, T. (2010). Pressure-sensitive paint measurement on co-rotating disks. In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010 (pp. 211-215). (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM; Vol. 2). https://doi.org/10.1115/FEDSM-ICNMM2010-31136